#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>

int Add(int x, int y)
{
    int z = 0;
    z = x + y;
    return z;
}

int main()
{
    int a = 10;
    int b = 20;
    int c = 0;

    c = Add(a, b);

    printf("%d\n", c);
    return 0;
}
